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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 4728.7-2008 |
Graphical symbols for diagrams - Part 7：Switchgear,controlgear and protective devices 电气简图用图形符号 第7部分：开关、控制和保护器件 |
China National Standards 7：Switchgear,controlgear |
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